Unofficial results for the August 4, 2020 election in Johnson County.
| Reported | Total | |
|---|---|---|
| Precincts Reported: | 10 | |
| Johnson County Commissioner of the County Commission - Eastern District | Votes | |
| John L. Marr (R) | 1,831 | |
| Aaron J. Brown (R) | 986 | |
| Raymond L. James (D) | 734 | |
| John A. Hart (D) | 582 | |
| Johnson County Commissioner of the County Commission - Western District | Votes | |
| Charlie Kavanaugh (R) | 2,525 | |
| Arnold Wilson (D) | 1,055 | |
| Johnson County Sheriff | Votes | |
| Scott Munstermann (R) | 5,335 | |
| Johnson County Assessor | Votes | |
| Mark Reynolds (R) | 5,293 | |
| Johnson County Treasurer | Votes | |
| Heather Reynolds (R) | 5,273 | |
| Johnson County Public Administrator | Votes | |
| Nancy Jo Jennings (R) | 5,248 | |
| Donald Lee Atkinson (D) | 2,288 | |
| Johnson County Coroner | Votes | |
| Clark Holdren (R) | ||
| Johnson County Collector of Revenue | Votes | |
| Paula West (R) | 2,589 | |
| Laura Neth Smith (R) | 2,824 | |
| Warrensburg Committeeman SE-1 | Votes | |
| Gene Lang (R) | 247 | |
| Byron W. McMurphy (R) | 219 |
